In Chapter 1038 we see Zoro wakes up and sees a hooded skeleton wielding a scythe ready to strike him while he himself can’t move at all.
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Oda already used that same aura that you see behind the reaper for 2 other occasions both connected with Zoro and his blades. In both occasions there is Zoro & blade and someone talking about death.
The picture below is when Kozaburo is saying to Zoro that blades are created to kill.
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This second picture is about the cursed blades. People that ain’t strong enough will die if they use the Kitetsu blades.
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What does that tell me? Well that Oda wants to explore more the lore about blades and death aka black blades that Hitetsu point in Wano.
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*by yorosenpai